MC14700: Low–Power CMOS Alarm IC with Horn Driver ARCHIVED

Overview

The MC14700 Alarm IC is designed to simplify the process of interfacing an alarm level voltage condition to a piezoelectric horn and/or LED. With an extremely low average current requirement and an integrated low batter detect feature, the part is ideally suited to battery operated applications. The MC14700 is easily configured, with a minimum of passives, to serve a wide range of applications. Typical applications include intrusion alarms, moisture or water ingress alarms, and toxic gas warning systems.

Archived content is no longer updated and is made available for historical reference only.

MoreLess

Features

High Impedance, FET Input Comparator
Comparator Outputs for Low Battery and Alarm Detect
Alarm Detect Threshold Easily Established with 2 Resistors
Integrated Oscillator and Piezoelectric Horn Driver
Low Battery Trip Point Set Internally (Altered Externally)
Horn "Chirp" During Low Battery Condition
Pulsed LED Drive Output
Reverse Battery Protection
Input Protection Diodes on the Detect Input
Average Supply Current: 9 µA

MoreLess

Features

High Impedance, FET Input Comparator
Comparator Outputs for Low Battery and Alarm Detect
Alarm Detect Threshold Easily Established with 2 Resistors
Integrated Oscillator and Piezoelectric Horn Driver
Low Battery Trip Point Set Internally (Altered Externally)
Horn "Chirp" During Low Battery Condition
Pulsed LED Drive Output
Reverse Battery Protection
Input Protection Diodes on the Detect Input
Average Supply Current: 9 µA

Data Sheets